Jason Grilli vs. Ross Grimsley — Career Comparison

Looking at the career totals, Jason Grilli and Ross Grimsley are fairly close on the surface numbers. Ross Grimsley posted stronger numbers in ERA (3.86 vs 4.22) and home runs allowed (0.64 per nine innings vs 1). Jason Grilli had the advantage in WHIP (1.405 vs 1.571). By the career numbers, Ross Grimsley had the better of this comparison — though ERA and WHIP alone don't account for era, park factors, or the defenses each pitcher worked behind.